The Twitter Follow Button is a small widget which allows users to easily follow a Twitter account from any webpage. If you add the twitter follow button to your blog, it will help your visitors to connect with you on Twitter.
If you want to add the "Follow Me on Twitter" button to your Blogger blog, follow the steps below.
How To Get Started
Go to : https://twitter.com/about/resources/buttons#follow
Fill the button options accordingly and copy the code
Log in to your Blogger dashboard
Go to Layout or Design